[wp-trac] [WordPress Trac] #51904: Critical Issue: Appearance > Menus Editor does not work in subsites

[WordPress Trac]

#51904: Critical Issue: Appearance > Menus Editor  does not work in subsites
-------------------------+-------------------------------------------------
 Reporter:  javad2000    |       Owner:  (none)
     Type:  defect       |      Status:  closed
  (bug)                  |
 Priority:  normal       |   Milestone:
Component:  General      |     Version:
 Severity:  normal       |  Resolution:  invalid
 Keywords:               |     Focuses:  multisite, performance, coding-
                         |  standards
-------------------------+-------------------------------------------------
Changes (by peterwilsoncc):

 * milestone:  Awaiting Review =>


Old description:

> Hello
> I recently moved from WP single to WP-MU for the first time, but a very
> frustrating bug prevents me from using WP-MU.
> I have a main site (mysite.com) and a few subsites (mysite.com/site1 ,
> mysite.com/site2)
> On the main site, when I go to Appearance > Menus, the menu editor
> dashboard works OK, I have no problem with it. For example, there are a
> few headings (pages, posts, categories, custom links, etc). I can click
> on each heading in order to expand/collapse the sub-items in order to see
> a list of posts, categories, etc. I can easily add posts, custom links,
> pages or categories to the menu.
> On the subsite, when I go to Appearance, Menus, the same headings are
> available (Pages, Posts, Categories, Custom Links, etc.). The first
> heading (pages) is expanded, so I can see a list of pages, and I can add
> pages to my menu. However, other headings (custom links, posts,
> categories, etc.) are collapsed, and cannot be  expanded. I cannot add
> any custom link, post, category, etc. to my menu. The subsites are
> useless without menus. I cannot launch my website without menus.
> I deactivated all plugins, but no luck.
> I use the latest version of WordPress (5.5.3) with the default theme
> (Twentytwenty).
> I installed a new and fresh version of Wordpress multisite  with a new
> fresh subsite, but the problem still exists (the menu editor works on the
> main site, but not on the subsite). That's why I believe there is surely
> something wrong with the core.
> I tested the problem on several PCs with different OS and different
> browsers (Chrome, Firefox, IE), but the problem exists on all browsers,
> all PCs, all OS's.
> Since I am blind and I use a screen reader, I firstly thought there was
> something wrong with the accessibility of the page, so I opened a support
> topic in Accessibility Forums:
> https://wordpress.org/support/topic/appearance-menus-accessibility-
> problems-for-blind-users-with-screen-reader/
>
> Nobody replied the post. Later on however, I asked a sighted person to
> click on the menu, and found out, the problem had nothing to do with my
> screen reader. Even sighted people cannot use the menu editor. I tried to
> open a similar topic in "Fixing Wordpress" forums, but, the moderator
> closed the topic for being repeated.
> The problem still exists and I cannot launch my website. Please try to
> reproduce this bug and give your feedback here. Is it a bug or something
> wrong with my server?
>
> Thank you

New description:

 Hello
 I recently moved from WP single to WP-MU for the first time, but a very
 frustrating bug prevents me from using WP-MU.
 I have a main site (mysite.com) and a few subsites (mysite.com/site1 ,
 mysite.com/site2)
 On the main site, when I go to Appearance > Menus, the menu editor
 dashboard works OK, I have no problem with it. For example, there are a
 few headings (pages, posts, categories, custom links, etc). I can click on
 each heading in order to expand/collapse the sub-items in order to see a
 list of posts, categories, etc. I can easily add posts, custom links,
 pages or categories to the menu.
 On the subsite, when I go to Appearance, Menus, the same headings are
 available (Pages, Posts, Categories, Custom Links, etc.). The first
 heading (pages) is expanded, so I can see a list of pages, and I can add
 pages to my menu. However, other headings (custom links, posts,
 categories, etc.) are collapsed, and cannot be  expanded. I cannot add any
 custom link, post, category, etc. to my menu. The subsites are useless
 without menus. I cannot launch my website without menus.
 I deactivated all plugins, but no luck.
 I use the latest version of WordPress (5.5.3) with the default theme
 (Twentytwenty).
 I installed a new and fresh version of WordPress multisite  with a new
 fresh subsite, but the problem still exists (the menu editor works on the
 main site, but not on the subsite). That's why I believe there is surely
 something wrong with the core.
 I tested the problem on several PCs with different OS and different
 browsers (Chrome, Firefox, IE), but the problem exists on all browsers,
 all PCs, all OS's.
 Since I am blind and I use a screen reader, I firstly thought there was
 something wrong with the accessibility of the page, so I opened a support
 topic in Accessibility Forums:
 https://wordpress.org/support/topic/appearance-menus-accessibility-
 problems-for-blind-users-with-screen-reader/

 Nobody replied the post. Later on however, I asked a sighted person to
 click on the menu, and found out, the problem had nothing to do with my
 screen reader. Even sighted people cannot use the menu editor. I tried to
 open a similar topic in "Fixing Wordpress" forums, but, the moderator
 closed the topic for being repeated.
 The problem still exists and I cannot launch my website. Please try to
 reproduce this bug and give your feedback here. Is it a bug or something
 wrong with my server?

 Thank you

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Ticket URL: <https://core.trac.wordpress.org/ticket/51904#comment:3>
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